Still looking to install Siri on your older iPhone 4 or iPhone 3GS? No problem about that — thanks to i4Siri and Spire you can have Siri fully working on your older iPhone that doesn’t natively support Siri. With out any further to do, read our how to guide below to get Siri installed on your iPhone!

Install Spire from Cydia.

Open the Settings app and go to General -> Siri and set the toggle to “On”.